Sash ventilator



June 11, 1935. Q H. LARSQN l 2,004,762

sAsH VENTILATOR Filed sept. 22, 1950 m@ muni -I y [ad Hlczro, @y QM* Wm Patented June l1, 1935 SASH VENTILATOR Carl H. Larson, Elkhart, Ind., assignor to The Adlake Company, Elkhart, Ind., a corporation of Illinois Application September 22, 1930, Serial N0. 483,407

3 Claims.

The present invention has to do with sash Ventilators, and is particularly concerned with an improved ventilator which, while capable of various applications, may be mounted advantageously in the top rail of a vertically slidable sash without interfering in any Way with the movement of the sash.

The purpose of the invention, generally stated, is to provide an improved sash ventilator which is saliently characterized by its extreme lightness and simplicity. The improved sash ventilator is, furthermore, quite inexpensive to manufacture and install.

Other objects and advantages of the invention will be evident to those skilled in the art upon a full understanding of the novel construction of the ventilator.

In order that the invention may be readily understood, one embodiment of the same is herein illustrated and described, but it will of course be appreciated that the invention is susceptible'of incorporation'm other structurally modified forms coming equally within the scope of the appended claims.

In the accompanying drawing:

Fig. 1 is an inside face view of a top sash rail equipped with the ventilator of the invention;

Fig. 2 is an outside face view of the rail, at the location of the ventilator;

Fig. 3 is a horizontal section, taken on the line 3 3 of Fig. 1;

Fig. 4 is an irregular vertical transverse section, taken on the line 4-4 of Fig. 1; and

Fig. 5 is a fragmentary horizontal section, taken on the line 5-5 of Fig. 1.

The ventilator of the invention is adapted to be mounted in a hollow sheet metal sash rail I0, which rail is provided in its outer wall II with a row of apertures I2 and is provided in its inner wall I3 with a relatively large rectangular opening I4 in opposition to the row of apertures. A rectangular sheet metal frame I5 is set into the opening I4 in substantially contiguous association with the apertured portion of the outer wall II. The frame I5 is provided with a row of apertures I6 which register with the apertures I2, and is provided with an offset marginal ange I1 which seats against a countersunk ledge I8 bordering the opening I4.

Y A rectangular wire screen I9 is positioned between the apertured portion of the outer wall I I and the apertured portion of the frame I5. The frame I5 is held in position by means of a plurality of two-part telescoping screws 20 which extend through aligned holes in the frame and the inner and outer Walls of the rail.

The frame I5 carries a slide 2I which is shiftably attached to the inner face of the apertured portion of the frame by means of a plurality of headed studs 22, which studs project from the frame through elongated slots 23 in the slide. The slide 2I is provided with a row of apertures 24 which are adapted to -move into or out of register with the apertures in the frame. The slide 2I may be shifted by means of a finger piece 25 which is attached to, and projects inwardly from, the slide intermediate the ends of the latter.

The ventilator above described can be manu-y factured and installed in the rail of a sash at very little expense. Since all of the parts of the ventilator are contained wholly within the contour of the rail, the ventilator will not interfere in any way with the raising of the sash, even when mounted in the top rail of the sash in proximity to a header.

I claim:

1. In a sash ventilator, the combination with a hollow sheet metal sash rail which is provided in its outer wall with a group of apertures and in its inner wall with a relatively large opening in opposition to the group o f apertures, of a sheet metal frame which is set into the rail substantially flush with the opening in the inner Wall in substantially contiguous association with the apertured portion of the outer wall, a screen positioned between the frame and the apertured portion of the outer wall, and a Ventilating slide which is carried by the frame and is provided with a group of apertures for movement into and out of register with the apertures in the outer wall of the rail.

2. In a sash ventilator, the combination with a hollow sheet metal sash rail which is provided in its outer wall with a row of apertures and in its inner Wall with a relatively large rectangular opening in opposition tothe row of apertures, of a rectangular sheet metal frame which is provided with a row of apertures and with an olset marginal flange providing a recessed portion and is set into the opening in the inner wall with the apertured portion of the frame in substantially contiguous registration with the apertured portion of the outer wall and with the marginal flange in lapped relation to the edge of the opening in the inner wall, a screen positioned between the frame and the apertured portion of the outer wall, and a slide which is provided with a row of apertures and is shiftably mounted within the recessed portion of the frame for movement into and out of register with the apertures inthe frame.

3, Inra construction of the character described, in combination, a hollow sheet meta-l sash rail which is provided in its front wall with a horizontally elongatedropening, a. horizontally elongated sheet metal,V frame which is set back into said opening and is provided with mw'arcy otv10 set marginal portions which la'p Withfthe edges rear planes of frame. 

